Kids enjoy their life way more than adults because they still have innocence. They can literally become ANYTHING. Wearing a dress allows them to "become" a princess. Making a cake out of mud allows them to become a patisserie. On the other hand, Adults have to live their reality. Adults already know that a mud cake will not make them a patisserie, But kids do. Because they have innocence. They are also not too late to become anything in real life too. Kids have less things to worry about because of course, They don't have to pay bills, Earn your own money, Or finding loved ones.
I prefer to have Jobs, I prefer to get along with a girlfriend over parents, I prefer to have my own house, And I would rather be a grown up forever!